Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

SkyPlex: Flexible digital satellite telecommunications

10.03.2004


SkyPlex is a technological and commercial breakthrough in Satellite Telecommunications. Due for launch on 16 March from Baïkonour aboard Eutelsat’s W3A satellite, SkyPlex will deliver Internet and TV services.


Eutelsat’s W3A satellite embarks five SkyPlex payloads with one “enhanced” SkyPlex unit.
Developed by the European Space Agency (ESA) with Alenia Spazio as prime contractor, SkyPlex is a payload designed for onboard digital multiplexing.
Since 1998 and its launch aboard Hotbird 4, SkyPlex has been a technological and commercial breakthrough in Satellite Telecommunications. Today there are 12 SKYPLEX units on orbit aboard the following Eutelsat satellites: Hotbird 4 (one unit), Hotbird 5 (3 units), Hotbird 6 (8 units).

Credits: Eutelsat



Developed by the European Space Agency (ESA) with Alenia Spazio as prime contractor, SkyPlex is used by Content Providers, companies and Internet Service Providers. Today there are 12 SkyPlex units in orbit aboard the following Eutelsat satellites: Hotbird 4 (one unit), Eurobird 2 (3 units), Hotbird 6 (8 units). The latest SkyPlex will have five classic units and, for the first time, an ‘enhanced’ SkyPlex unit that will be lighter and smaller.

SkyPlex is a payload designed for onboard digital multiplexing. The multiplexing facility provides much more flexibility and lower operating costs because broadcasters can uplink services directly. SkyPlex can receive video, audio and data uplink signals from several different geographic locations and multiplex them into a single DVB downlink signal.


Applications include single digital TV programme broadcasting, digital radio broadcasting, interactive multimedia services and Internet connectivity.

The SkyPlex payload also offers a wide area coverage for broadcasters with instant access to a very large installed base of DVB (digital video broadcasting) receivers. Regional, local and thematic broadcasters can therefore benefit from easy and direct satellite access into millions of homes.

A simple 90 cm, 2 watt antenna is enough to "board" the satellite. Users have their own receiving/transmitting antenna, as small as today’s ones for satellite television, mounted on the roof of their home.

Used by Service Providers, Corporate Companies, Universities, Multimedia Content Providers, Broadcasters and Telecom Operators, SkyplexNet permits autonomous access to the satellite.

SkyplexNet is fully operational in several organizations to implement the following services:
  • Company Web TV
  • Company training and information
  • Tele-education courses
  • Distance University
  • Training and information for the Public Administrations
  • Intranets

The Service Provider, being independent, can manage its own customer base, create and offer programme schedules with video streaming, Web-based video products, IP-multicast and provide interactive services through a terrestrial return path. Users of the Service Centre need only a PC with a DVB card and a parabola, while corporate users can be connected by a LAN router.

Dominique Detain | ESA

More articles from Communications Media:

nachricht New cruise ship “Mein Schiff 1” features Fraunhofer 3D sound on board
05.09.2018 | Fraunhofer-Institut für Digitale Medientechnologie IDMT

nachricht Small enclosure, big sound, clear speech
31.08.2018 | Fraunhofer-Institut für Digitale Medientechnologie IDMT

All articles from Communications Media >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: The hidden structure of the periodic system

The well-known representation of chemical elements is just one example of how objects can be arranged and classified

The periodic table of elements that most chemistry books depict is only one special case. This tabular overview of the chemical elements, which goes back to...

Im Focus: MPSD team discovers light-induced ferroelectricity in strontium titanate

Light can be used not only to measure materials’ properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state. A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.

Ferroelectricity is a state in which the constituent lattice “looks” in one specific direction, forming a macroscopic electrical polarisation. The ability to...

Im Focus: Determining the Earth’s gravity field more accurately than ever before

Researchers at TU Graz calculate the most accurate gravity field determination of the Earth using 1.16 billion satellite measurements. This yields valuable knowledge for climate research.

The Earth’s gravity fluctuates from place to place. Geodesists use this phenomenon to observe geodynamic and climatological processes. Using...

Im Focus: Tube anemone has the largest animal mitochondrial genome ever sequenced

Discovery by Brazilian and US researchers could change the classification of two species, which appear more akin to jellyfish than was thought.

The tube anemone Isarachnanthus nocturnus is only 15 cm long but has the largest mitochondrial genome of any animal sequenced to date, with 80,923 base pairs....

Im Focus: Tiny light box opens new doors into the nanoworld

Researchers at Chalmers University of Technology, Sweden, have discovered a completely new way of capturing, amplifying and linking light to matter at the nanolevel. Using a tiny box, built from stacked atomically thin material, they have succeeded in creating a type of feedback loop in which light and matter become one. The discovery, which was recently published in Nature Nanotechnology, opens up new possibilities in the world of nanophotonics.

Photonics is concerned with various means of using light. Fibre-optic communication is an example of photonics, as is the technology behind photodetectors and...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

SEMANTiCS 2019 brings together industry leaders and data scientists in Karlsruhe

29.04.2019 | Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

First dust conference in the Central Asian part of the earth’s dust belt

15.04.2019 | Event News

 
Latest News

Uncovering hidden protein structures

18.06.2019 | Life Sciences

Monitoring biodiversity with sound: how machines can enrich our knowledge

18.06.2019 | Life Sciences

Schizophrenia: Adolescence is the game-changer

18.06.2019 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>